/Engine/Source/Runtime/Engine/Public/Animation/AnimNodeMessages.h
Call the supplied function with each node tagged with the specified tag
void ForEachTag ( [FName](API\Runtime\Core\UObject\FName) InTagId, [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< [EEnumerate](API\Runtime\Engine\Animation\FMessageStack\EEnumerate)([FNodeInfo](API\Runtime\Engine\Animation\FMessageStack\FNodeInfo))> InFunction ) const